Steak with balsamic vinegar marinade - Bring out the juicy, mellow flavour of good steak fast with this simple marinade. - rump or sirloin beef steak, sprigs fresh rosemary, clove garlic, olive oil, balsamic vinegar, Sea salt, black pepper, Bash the unpeeled garlic. Wash the rosemary and remove the needles from the stalks.; Mix together [...]